NanaWall Folding Doors: A Comprehensive Review

NanaWall Folding Doors

Folding doors combine the best parts of both doors and windows, but the buying process can be fraught with hazards. The single greatest mistake that folding door buyers make is failing to research their purchase and ending up with either a sub-par product or one that they overpaid for.

To make things easier on you, we’ve gone ahead and done all of the relevant research about NanaWall folding doors, and we’ll present it to you over the course of this review. This guide will cover NanaWall’s history as a brand before diving into details about their products and how they perform.

NanaWall Brand History

NanaWall was established in 1986 in Corte Madera, California. They were one of the first companies to pioneer the moving glass wall concept, and that naturally led to them becoming a leader in the folding door industry over time.

Unlike many other folding door makers, NanaWall doesn’t manufacture all of their products, as a large number of them are manufactured in Germany by the Solarlux company. Nana Wall Systems (the NanaWall parent company) began an agreement with Solarlux in 1996, and it is still going strong to this day.

Along with the Solarlux partnership, NanaWall opened their own factory in Richmond, California, in 2005. While this facility doesn’t produce all of the company’s products, it is responsible for many of NanaWall’s aluminum-framed folding glass doors, including the SL45, the SL60, the SL70, and the SL73.

Over the course of more than three decades, NanaWall has remained at the forefront of the folding door industry, always innovating and never resting on their laurels. This has left the company with a wide range of products in their catalog, including a selection of more than 12 folding doors.

Throughout their history, NanaWall has changed the face of the folding door industry several times. The company was the first to produce a hurricane-resistant folding door system and also the first to design a frameless folding door with edge-to-edge glass.

NanaWall is one of the few makers of folding doors that have ISO9000-certified factories producing their products. Both the Solarlux factory in Germany and the American facility in Richmond share this level of certification.

Product Options

Now that we’ve introduced the company, it’s time to move on to NanaWall’s products. This part of our review will focus on the folding doors themselves, including the products that NanaWall has available, as well as the materials that they’re made of, your customization options, and more.


NanaWall offers their folding doors in a range of different materials for their frames:

  • Aluminum
  • Wood
  • Aluminum-clad wood
  • Frameless glass


NanaWall’s aluminum frames are designed to be as durable as possible without being too heavy to comfortably operate. Along with its light weight, aluminum has plenty of advantages over other kinds of metals, including a superior degree of resistance to corrosion that makes it suitable for use in areas with harsh weather.

Aluminum folding doors typically have a higher level of energy efficiency compared to other materials, and NanaWall’s products are no different in that regard. This is because aluminum does a better job of preventing heat transfer between the interior and exterior of a home.

These are NanaWall’s aluminum folding door models:

  • SL60: Thermally broken aluminum for improved energy efficiency
  • SL45: Narrow-frame folding door compatible with FoldFlat technology
  • SL70: Energy efficient thermally broken design with additional structural reinforcement for improved durability
  • SL73: Thermally broken hurricane-resistant design
  • SL82: Thermally broken folding door with edge-to-edge glass on the exterior panels
  • SL84: Thermally broken folding door with even higher energy efficiency
  • SL64: Thermally broken folding door with acoustic buffering


NanaWall’s wooden folding doors are made out of solid wood in a wide range of different species. For improved durability, the wood is cross-grained and laminated. The wooden frames of these walls are also pre-treated with a water-based solution that is more environmentally friendly than equivalent formulae.

Standard wood species include mahogany, spruce, meranti, pine, and western hemlock. However, if you’re looking for another species, NanaWall also offers a variety of specialty woods.

Here are NanaWall’s two wooden folding door systems:

  • WD65: This is a narrow-framed system that is top-hung and supports 180-degree stacking.
  • WD66: Similar to the WD65, this model features additional seals to improve its insulation characteristics in cold weather.

Aluminum-Clad Wood

NanaWall’s aluminum-clad folding doors are designed to combine the traditional appearance of a wooden interior with the resilience of an aluminum exterior. These doors feature a layer of aluminum cladding over the outside surface that will help reduce warping and other damage to the wood caused by the environment.

NanaWall’s aluminum-clad models differ from the competition in that there is no direct interface between the wood and the aluminum. This is due to the cladding being attached with a back-ventilated rain screen that keeps it separated from the structural wood of the door.

NanaWall only offers a single aluminum-clad folding door model:

  • WA67: This top-hung folding door features a 100% solid wood frame covered by a layer of aluminum cladding

Frameless Glass

NanaWall also has folding doors with unique frameless panels, providing unparalleled visibility. Relying entirely on horizontal frames, these folding doors aren’t as durable as the other choices, but they make up for that with superior aesthetics.

Since these frameless glass folding doors are less durable, many clients prefer to install them as interior doors or room partitions. NanaWall offers two different types of frameless glass folding doors:

  • FSW75: This is a simple folding door with a frameless design, using a top-hung mechanism.
  • CSW75: Similar to the FSW75, this model instead uses a top-hung center-pivot system.

Color Options

NanaWall’s aluminum folding doors have several color options that you can choose from. By default, their aluminum models come with a clear anodized coat. Upon request, NanaWall can manufacture a folding door with an alternate anodized finish, but these are not offered as factory-default options.

Aluminum folding doors can also feature a standard powder coating finish, ranging from colors like stone white to brick red. If you’re looking for even more colors, you can pay extra to have your folding door coating with one of 200 RAL gloss coats or one of 200 RAL matte coats.

Sizes Available

NanaWall’s panel sizes are dependent on the kind of frame the buyer selects.

  • Their aluminum folding doors feature a max panel height of 12 feet and a max width of 4 feet.
  • The wooden models in NanaWall’s catalog come in slightly smaller sizes, with a height of up to 10 feet and a panel width of up to 3 feet and 7 inches.
  • NanaWall’s aluminum-clad doors feature a max height of 9 feet and 10 inches and a panel width limit of 3 feet and 3 inches.
  • Finally, NanaWall’s frameless glass folding doors feature a max height of 10 feet and 6 inches with a four-foot maximum panel width.

Configuration Options

NanaWall’s folding doors are available in a wide range of configurations, with their aluminum-framed and frameless models being some of the most versatile.

The aluminum product line is filled with different folding door configurations, including top-hung and bottom-supported folding doors that can cater to the structural needs of your building.

The company’s frameless folding doors come in two models, one of which offers center-pivot functionality. These frameless panels can be mixed and matched so that you can create your perfect folding door setup.

Pricing Options

Since NanaWall’s products are made in Germany, they’re a little more expensive than the competition. However, NanaWall doesn’t sell their folding doors through retailers or distributors, so you can rest assured that 100% of your money is going to the manufacturer when you buy one of these doors.

The average cost for a NanaWall folding door is about $1300 per linear foot, though that estimate can be lower or higher, depending on the kind of frame you opt for and the height of the door.

Something like a five-door system from NanaWall would typically cost around $20 000.


NanaWall certifies various installation services to show that they have the expertise required to properly assemble and mount their folding doors. Since NanaWall has such a wide range of products, it’s essential for installers to know about each of them so that they don’t get confused and make a mistake while setting the doors up.

This is why NanaWall offers a training program to all installers willing to become certified. They couple this with combined education to ensure that all of them are kept up-to-date with the company’s latest models.

Warranty Info

Provided your NanaWall folding door is installed by a certified installer, you’ll benefit from a ten-year warranty on the frame, insulated glass, and rollers. If a certified installer is not used to mount the door, the warranty on the frame will only last five years.

Laminated glass is also subject to a shorter five-year warranty, and anodized surfaces are only covered by a three-year warranty. NanaWall will either repair or replace any of these components once they fail. If the anodized coating has worn off of aluminum components, they will restore it.

Pros and Cons


  • Huge range of available models
  • Frameless folding doors
  • Long and comprehensive warranty


  • Expensive
  • Warranty is shorter if the door isn’t installed by a certified technician

What Other Customers Are Saying

Let’s take a look at some of the customer reviews of NanaWall on

Project Solutions Unlimited:

“Product sells itself. Installer was easy to deal with and very professional. Local supplier was easy to connect with, deal with and followed up with all issues concerning the delays due to Covid-19 delays. Job well done!!!”

Beth Atkinson:

“Peter Lombardi did a great job installing our Nana Wall and also prepared the opening as well as added stairs into the space. He arrived on time and did the installation in one day. We are thrilled with our wall and the job he did.”

Final Thoughts

If you’re looking for a huge selection of folding doors made by an innovative company, NanaWall offers their products in a wide range of frame styles and extras. Despite being slightly more expensive than some of their competitors, NanaWall’s products speak for themselves.